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章节
    All基础进阶组件使用
    组件使用
    封装第三方组件 props
    import { Checkbox } from "antd"; type CheckboxProps = React.ComponentProps<typeof Checkbox>; type My
    lhh|07/31/2024 14:20
    进阶
    箭头函数写泛型
    // tsx 中需要加多个 , 或者 extends,否则会识别成 react 的标签 const fn = <T>(p: T): T => { return p; }; const fn2 =
    lhh|07/31/2024 14:19
    进阶
    读取对象数组中的对象类型
    type Person = { name: string; age: number; schools: { id: string }[] }; type PersonSchool = Person["
    lhh|07/31/2024 14:19
    进阶
    读取对象的 key 作为 type
    const person = { name: "lhh", age: "18" }; type PersonKey = keyof typeof person; type Person = { [ke
    lhh|07/31/2024 14:19
    进阶
    将类型的所有可选属性转为必选
    /** 将类型的所有可选属性(包括嵌套的,同时移除null)都转化为必选 */ type DeepRequired<T> = { [P in keyof T]-?: T[P] extends ob
    lhh|07/31/2024 14:18
    进阶
    将指定 key 变为必选
    type RequireKey<T, K extends keyof T> = Omit<T, K> & { [P in K]-?: T[P] }; // type RequireKey2<T, K
    lhh|07/31/2024 14:18
    进阶
    将指定 key 变为可选
    type WithPartial<T, K extends keyof T> = Omit<T, K> & Partial<Pick<T, K>>; type Person = { id: str
    lhh|07/31/2024 14:18
    基础
    Record
    映射属性,即下面属性全部映射为 stringtype PersonKey = "name" | "age"; type PersonType = Record<PersonKey, string>;
    lhh|07/31/2024 14:17
    基础
    Partial Required
    type PersonType = { name: string; age: string; }; type PersonType2 = Partial<PersonType>; type _
    lhh|07/31/2024 14:16
    基础
    Extract Exclude
    type T1 = Extract<"a" | "b" | "c", "a" | "f">; type T11 = "a"; // 等效于 type T2 = Exclude<"a" | "b" |
    lhh|07/31/2024 14:16
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